Failure Probability Modeling of Miniature DC Motors and Its Application in Fault Diagnosis

Table 1

Main parameters of a healthy MDCM.

Motor parameters	Values
Rated voltage	5.0 V DC
No load current	45 mA max
No load speed	5400–6700 r/min
Phase resistance of the winding	18 Ω
Moment of inertia	2.668 × 10–7 kgm^2
Damping coefficient	4 × 10^−7
Number of poles	2